Rename files to match the names of the libraries

Rename media.* to mediactl.* and subdev.* v4l2subdev.*.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 0 insertions, 475 deletions

diff --git a/src/media.c b/src/media.c
deleted file mode 100644
index f443d0c..0000000
--- a/src/media.c
+++ /dev/null
@@ -1,475 +0,0 @@
-/*
- * Media controller test application
- *
- * Copyright (C) 2010 Ideas on board SPRL <laurent.pinchart@ideasonboard.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- */
-
-#include "config.h"
-
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-
-#include <linux/videodev2.h>
-#include <linux/media.h>
-
-#include "media.h"
-#include "tools.h"
-
-struct media_pad *media_entity_remote_source(struct media_pad *pad)
-{
-	unsigned int i;
-
-	if (!(pad->flags & MEDIA_PAD_FL_SINK))
-		return NULL;
-
-	for (i = 0; i < pad->entity->num_links; ++i) {
-		struct media_link *link = &pad->entity->links[i];
-
-		if (!(link->flags & MEDIA_LNK_FL_ENABLED))
-			continue;
-
-		if (link->sink == pad)
-			return link->source;
-	}
-
-	return NULL;
-}
-
-struct media_entity *media_get_entity_by_name(struct media_device *media,
-					      const char *name, size_t length)
-{
-	unsigned int i;
-
-	for (i = 0; i < media->entities_count; ++i) {
-		struct media_entity *entity = &media->entities[i];
-
-		if (strncmp(entity->info.name, name, length) == 0)
-			return entity;
-	}
-
-	return NULL;
-}
-
-struct media_entity *media_get_entity_by_id(struct media_device *media,
-					    __u32 id)
-{
-	unsigned int i;
-
-	for (i = 0; i < media->entities_count; ++i) {
-		struct media_entity *entity = &media->entities[i];
-
-		if (entity->info.id == id)
-			return entity;
-	}
-
-	return NULL;
-}
-
-int media_setup_link(struct media_device *media,
-		     struct media_pad *source,
-		     struct media_pad *sink,
-		     __u32 flags)
-{
-	struct media_link *link;
-	struct media_link_desc ulink;
-	unsigned int i;
-	int ret;
-
-	for (i = 0; i < source->entity->num_links; i++) {
-		link = &source->entity->links[i];
-
-		if (link->source->entity == source->entity &&
-		    link->source->index == source->index &&
-		    link->sink->entity == sink->entity &&
-		    link->sink->index == sink->index)
-			break;
-	}
-
-	if (i == source->entity->num_links) {
-		printf("%s: Link not found\n", __func__);
-		return -EINVAL;
-	}
-
-	/* source pad */
-	ulink.source.entity = source->entity->info.id;
-	ulink.source.index = source->index;
-	ulink.source.flags = MEDIA_PAD_FL_SOURCE;
-
-	/* sink pad */
-	ulink.sink.entity = sink->entity->info.id;
-	ulink.sink.index = sink->index;
-	ulink.sink.flags = MEDIA_PAD_FL_SINK;
-
-	ulink.flags = flags | (link->flags & MEDIA_LNK_FL_IMMUTABLE);
-
-	ret = ioctl(media->fd, MEDIA_IOC_SETUP_LINK, &ulink);
-	if (ret < 0) {
-		printf("%s: Unable to setup link (%s)\n", __func__,
-			strerror(errno));
-		return ret;
-	}
-
-	link->flags = ulink.flags;
-	link->twin->flags = ulink.flags;
-	return 0;
-}
-
-int media_reset_links(struct media_device *media)
-{
-	unsigned int i, j;
-	int ret;
-
-	for (i = 0; i < media->entities_count; ++i) {
-		struct media_entity *entity = &media->entities[i];
-
-		for (j = 0; j < entity->num_links; j++) {
-			struct media_link *link = &entity->links[j];
-
-			if (link->flags & MEDIA_LNK_FL_IMMUTABLE ||
-			    link->source->entity != entity)
-				continue;
-
-			ret = media_setup_link(media, link->source, link->sink,
-					       link->flags & ~MEDIA_LNK_FL_ENABLED);
-			if (ret < 0)
-				return ret;
-		}
-	}
-
-	return 0;
-}
-
-static struct media_link *media_entity_add_link(struct media_entity *entity)
-{
-	if (entity->num_links >= entity->max_links) {
-		struct media_link *links = entity->links;
-		unsigned int max_links = entity->max_links * 2;
-		unsigned int i;
-
-		links = realloc(links, max_links * sizeof *links);
-		if (links == NULL)
-			return NULL;
-
-		for (i = 0; i < entity->num_links; ++i)
-			links[i].twin->twin = &links[i];
-
-		entity->max_links = max_links;
-		entity->links = links;
-	}
-
-	return &entity->links[entity->num_links++];
-}
-
-static int media_enum_links(struct media_device *media)
-{
-	__u32 id;
-	int ret = 0;
-
-	for (id = 1; id <= media->entities_count; id++) {
-		struct media_entity *entity = &media->entities[id - 1];
-		struct media_links_enum links;
-		unsigned int i;
-
-		links.entity = entity->info.id;
-		links.pads = malloc(entity->info.pads * sizeof(struct media_pad_desc));
-		links.links = malloc(entity->info.links * sizeof(struct media_link_desc));
-
-		if (ioctl(media->fd, MEDIA_IOC_ENUM_LINKS, &links) < 0) {
-			printf("%s: Unable to enumerate pads and links (%s).\n",
-				__func__, strerror(errno));
-			free(links.pads);
-			free(links.links);
-			return -errno;
-		}
-
-		for (i = 0; i < entity->info.pads; ++i) {
-			entity->pads[i].entity = entity;
-			entity->pads[i].index = links.pads[i].index;
-			entity->pads[i].flags = links.pads[i].flags;
-		}
-
-		for (i = 0; i < entity->info.links; ++i) {
-			struct media_link_desc *link = &links.links[i];
-			struct media_link *fwdlink;
-			struct media_link *backlink;
-			struct media_entity *source;
-			struct media_entity *sink;
-
-			source = media_get_entity_by_id(media, link->source.entity);
-			sink = media_get_entity_by_id(media, link->sink.entity);
-
-			if (source == NULL || sink == NULL) {
-				printf("WARNING entity %u link %u from %u/%u to %u/%u is invalid!\n",
-					id, i, link->source.entity, link->source.index,
-					link->sink.entity, link->sink.index);
-				ret = -EINVAL;
-			} else {
-				fwdlink = media_entity_add_link(source);
-				fwdlink->source = &source->pads[link->source.index];
-				fwdlink->sink = &sink->pads[link->sink.index];
-				fwdlink->flags = link->flags;
-
-				backlink = media_entity_add_link(sink);
-				backlink->source = &source->pads[link->source.index];
-				backlink->sink = &sink->pads[link->sink.index];
-				backlink->flags = link->flags;
-
-				fwdlink->twin = backlink;
-				backlink->twin = fwdlink;
-			}
-		}
-
-		free(links.pads);
-		free(links.links);
-	}
-
-	return ret;
-}
-
-#ifdef HAVE_LIBUDEV
-
-#include <libudev.h>
-
-static inline int media_udev_open(struct udev **udev)
-{
-	*udev = udev_new();
-	if (*udev == NULL)
-		return -ENOMEM;
-	return 0;
-}
-
-static inline void media_udev_close(struct udev *udev)
-{
-	if (udev != NULL)
-		udev_unref(udev);
-}
-
-static int media_get_devname_udev(struct udev *udev,
-		struct media_entity *entity, int verbose)
-{
-	struct udev_device *device;
-	dev_t devnum;
-	const char *p;
-	int ret = -ENODEV;
-
-	if (udev == NULL)
-		return -EINVAL;
-
-	devnum = makedev(entity->info.v4l.major, entity->info.v4l.minor);
-	if (verbose)
-		printf("looking up device: %u:%u\n", major(devnum), minor(devnum));
-	device = udev_device_new_from_devnum(udev, 'c', devnum);
-	if (device) {
-		p = udev_device_get_devnode(device);
-		if (p) {
-			strncpy(entity->devname, p, sizeof(entity->devname));
-			entity->devname[sizeof(entity->devname) - 1] = '\0';
-		}
-		ret = 0;
-	}
-
-	udev_device_unref(device);
-
-	return ret;
-}
-
-#else	/* HAVE_LIBUDEV */
-
-struct udev;
-
-static inline int media_udev_open(struct udev **udev) { return 0; }
-
-static inline void media_udev_close(struct udev *udev) { }
-
-static inline int media_get_devname_udev(struct udev *udev,
-		struct media_entity *entity, int verbose)
-{
-	return -ENOTSUP;
-}
-
-#endif	/* HAVE_LIBUDEV */
-
-static int media_get_devname_sysfs(struct media_entity *entity)
-{
-	struct stat devstat;
-	char devname[32];
-	char sysname[32];
-	char target[1024];
-	char *p;
-	int ret;
-
-	sprintf(sysname, "/sys/dev/char/%u:%u", entity->info.v4l.major,
-		entity->info.v4l.minor);
-	ret = readlink(sysname, target, sizeof(target));
-	if (ret < 0)
-		return -errno;
-
-	target[ret] = '\0';
-	p = strrchr(target, '/');
-	if (p == NULL)
-		return -EINVAL;
-
-	sprintf(devname, "/dev/%s", p + 1);
-	ret = stat(devname, &devstat);
-	if (ret < 0)
-		return -errno;
-
-	/* Sanity check: udev might have reordered the device nodes.
-	 * Make sure the major/minor match. We should really use
-	 * libudev.
-	 */
-	if (major(devstat.st_rdev) == entity->info.v4l.major &&
-	    minor(devstat.st_rdev) == entity->info.v4l.minor)
-		strcpy(entity->devname, devname);
-
-	return 0;
-}
-
-static int media_enum_entities(struct media_device *media, int verbose)
-{
-	struct media_entity *entity;
-	struct udev *udev;
-	unsigned int size;
-	__u32 id;
-	int ret;
-
-	ret = media_udev_open(&udev);
-	if (ret < 0)
-		printf("%s: Can't get udev context\n", __func__);
-
-	for (id = 0, ret = 0; ; id = entity->info.id) {
-		size = (media->entities_count + 1) * sizeof(*media->entities);
-		media->entities = realloc(media->entities, size);
-
-		entity = &media->entities[media->entities_count];
-		memset(entity, 0, sizeof(*entity));
-		entity->fd = -1;
-		entity->info.id = id | MEDIA_ENT_ID_FLAG_NEXT;
-
-		ret = ioctl(media->fd, MEDIA_IOC_ENUM_ENTITIES, &entity->info);
-		if (ret < 0) {
-			ret = errno != EINVAL ? -errno : 0;
-			break;
-		}
-
-		/* Number of links (for outbound links) plus number of pads (for
-		 * inbound links) is a good safe initial estimate of the total
-		 * number of links.
-		 */
-		entity->max_links = entity->info.pads + entity->info.links;
-
-		entity->pads = malloc(entity->info.pads * sizeof(*entity->pads));
-		entity->links = malloc(entity->max_links * sizeof(*entity->links));
-		if (entity->pads == NULL || entity->links == NULL) {
-			ret = -ENOMEM;
-			break;
-		}
-
-		media->entities_count++;
-
-		/* Find the corresponding device name. */
-		if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE &&
-		    media_entity_type(entity) != MEDIA_ENT_T_V4L2_SUBDEV)
-			continue;
-
-		/* Try to get the device name via udev */
-		if (!media_get_devname_udev(udev, entity, verbose))
-			continue;
-
-		/* Fall back to get the device name via sysfs */
-		media_get_devname_sysfs(entity);
-	}
-
-	media_udev_close(udev);
-	return ret;
-}
-
-struct media_device *media_open(const char *name, int verbose)
-{
-	struct media_device *media;
-	int ret;
-
-	media = calloc(1, sizeof(*media));
-	if (media == NULL) {
-		printf("%s: unable to allocate memory\n", __func__);
-		return NULL;
-	}
-
-	if (verbose)
-		printf("Opening media device %s\n", name);
-	media->fd = open(name, O_RDWR);
-	if (media->fd < 0) {
-		media_close(media);
-		printf("%s: Can't open media device %s\n", __func__, name);
-		return NULL;
-	}
-
-	if (verbose)
-		printf("Enumerating entities\n");
-
-	ret = media_enum_entities(media, verbose);
-
-	if (ret < 0) {
-		printf("%s: Unable to enumerate entities for device %s (%s)\n",
-			__func__, name, strerror(-ret));
-		media_close(media);
-		return NULL;
-	}
-
-	if (verbose) {
-		printf("Found %u entities\n", media->entities_count);
-		printf("Enumerating pads and links\n");
-	}
-
-	ret = media_enum_links(media);
-	if (ret < 0) {
-		printf("%s: Unable to enumerate pads and linksfor device %s\n",
-			__func__, name);
-		media_close(media);
-		return NULL;
-	}
-
-	return media;
-}
-
-void media_close(struct media_device *media)
-{
-	unsigned int i;
-
-	if (media->fd != -1)
-		close(media->fd);
-
-	for (i = 0; i < media->entities_count; ++i) {
-		struct media_entity *entity = &media->entities[i];
-
-		free(entity->pads);
-		free(entity->links);
-		if (entity->fd != -1)
-			close(entity->fd);
-	}
-
-	free(media->entities);
-	free(media);
-}
-